Applying geoscience to Australia's most important challenges

Map Roamer Card

Abstract

These useful see-through map cards are great for reading bearings, distances and grid references on 1:100 000 and 1:250 000
scale maps. The roamer can be purchased as part of the Map Reading Guide from the Client Services.
A roamer can be used for
determining the last Easting and last Northing figures for a six-figure grid reference:
<ol>
<li>Place the top right hand corner intersection of the roamer lines over the point of interest. </li>
<li>Read the numbers from this point to the left to give the final Easting figure, and down to
give the final Northing figure. </li>
<li>The number required is the last number read, before the grid line on the map crosses the roamer. </li>
</ol>